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/*
* Copyright 2014 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "kfd_priv.h"
#include "kfd_events.h"
#include "cik_int.h"
static bool cik_event_interrupt_isr(struct kfd_dev *dev,
const uint32_t *ih_ring_entry)
{
unsigned int pasid;
const struct cik_ih_ring_entry *ihre =
(const struct cik_ih_ring_entry *)ih_ring_entry;
pasid = (ihre->ring_id & 0xffff0000) >> 16;
/* Do not process in ISR, just request it to be forwarded to WQ. */
return (pasid != 0) &&
(ihre->source_id == CIK_INTSRC_CP_END_OF_PIPE ||
ihre->source_id == CIK_INTSRC_SQ_INTERRUPT_MSG ||
ihre->source_id == CIK_INTSRC_CP_BAD_OPCODE);
}
static void cik_event_interrupt_wq(struct kfd_dev *dev,
const uint32_t *ih_ring_entry)
{
unsigned int pasid;
const struct cik_ih_ring_entry *ihre =
(const struct cik_ih_ring_entry *)ih_ring_entry;
pasid = (ihre->ring_id & 0xffff0000) >> 16;
if (pasid == 0)
return;
if (ihre->source_id == CIK_INTSRC_CP_END_OF_PIPE)
kfd_signal_event_interrupt(pasid, 0, 0);
else if (ihre->source_id == CIK_INTSRC_SQ_INTERRUPT_MSG)
kfd_signal_event_interrupt(pasid, ihre->data & 0xFF, 8);
else if (ihre->source_id == CIK_INTSRC_CP_BAD_OPCODE)
kfd_signal_hw_exception_event(pasid);
}
const struct kfd_event_interrupt_class event_interrupt_class_cik = {
.interrupt_isr = cik_event_interrupt_isr,
.interrupt_wq = cik_event_interrupt_wq,
};
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